990825171875

Names of 990825171875

• Cardinal: 990825171875 can be written as Nine hundred ninety billion, eight hundred twenty-five million, one hundred seventy-one thousand, eight hundred seventy-five.

Scientific notation

• Scientific notation: 9.90825171875 × 10¹¹

Factors of 990825171875

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 23

Divisors of 990825171875

• Number of divisors d(n): 126
• Complete list of divisors:
  1 5 7 11 25 35 49 55 77 125 175 245 275 343 385 539 625 875 1225 1375 1715 1925 2401 2695 3125 3773 4375 6125 6875 8575 9625 12005 13475 15625 16807 18865 21875 26411 30625 34375 42875 48125 60025 67375 84035 94325 109375 117649 132055 153125 171875 184877 214375 240625 300125 336875 420175 471625 588245 660275 765625 823543 924385 1071875 1203125 1294139 1500625 1684375 2100875 2358125 2941225 3301375 4117715 4621925 5359375 5764801 6470695 7503125 8421875 9058973 10504375 11790625 14706125 16506875 20588575 23109625 28824005 32353475 37515625 45294865 52521875 58953125 63412811 73530625 82534375 102942875 115548125 144120025 161767375 226474325 262609375 317064055 367653125 412671875 514714375 577740625 720600125 808836875 1132371625 1585320275 1838265625 2573571875 2888703125 3603000625 4044184375 5661858125 7926601375 12867859375 18015003125 20220921875 28309290625 39633006875 90075015625 141546453125 198165034375 990825171875
• Sum of all divisors σ(n): 1576292557572
• Sum of proper divisors (its aliquot sum) s(n): 585467385697
• 990825171875 is a deficient number, because the sum of its proper divisors (585467385697) is less than itself. Its deficiency is 405357786178

Bases of 990825171875

• Binary: 1110011010110001110010000100101110100011₂
• Hexadecimal: 0xE6B1C84BA3
• Base-36: CN6FQ3KZ

Squares and roots of 990825171875

• 990825171875 squared (990825171875²) is 981734521221123291015625
• 990825171875 cubed (990825171875³) is 972727275724540319701122283935546875
• The square root of 990825171875 is 995402.0152054143
• The cube root of 990825171875 is 9969.3232293869

Scales and comparisons

• 990,825,171,875 seconds is equal to 31,505 years, 9 weeks, 22 hours, 24 minutes, 35 seconds.
• To count from 1 to 990,825,171,875 would take you about sixty-three thousand and ten years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 990825171875 cubic inches would be around 830.8 feet tall.

Recreational maths with 990825171875

• 990825171875 backwards is 578171528099
• The number of decimal digits it has is: 12
• The sum of 990825171875's digits is 62
• More coming soon!